29885720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18223}}^1$

素因数の和:18275

約数の個数: 32

約数和(自身を含む): 68886720

約数和(自身を除く): 39001000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 18223, 36446, 72892, 91115, 145784, 182230, 364460, 728920, 747143, 1494286, 2988572, 3735715, 5977144, 7471430, 14942860, 29885720]

約数ペア:

[(1, 29885720), (2, 14942860), (4, 7471430), (5, 5977144), (8, 3735715), (10, 2988572), (20, 1494286), (40, 747143), (41, 728920), (82, 364460), (164, 182230), (205, 145784), (328, 91115), (410, 72892), (820, 36446), (1640, 18223)]